Re: Verify network connection from i

I wrote an article about this a long time ago that included a utility for programatically checking a connection. Unfortunately, it's probably not online anywhere anymore.  I may be able to dig it up if you can't find an easy solution.

IMHO, if you're checking something like this you should always check the specific thing you're looking for.  i.e. if you want to check HTTP, you should make a TCP connection on the same port (Default: 80) that the actual connection will require.

Checking a different way (like PING) is not good because each thing can be blocked individually.  In your case, as you've noted, they've blocked PING, so it can't be used to test for (whatever it is that you wanted to test).  It'd also be possible to block the other way...  allow PING and block (whatever).  Everything can be allowed/blocked individually.. so test the specific thing you want to know about, not a different protocol.

-SK


On 8/21/2018 11:00 AM, David Gibbs wrote:

Folks:

This may sound like a dumb question, but what tool or technique do you use to verify a network connection to another system (internal or external)?

Yes, PING & TRACEROUTE are the obvious answers ... but, in my case, ping & traceroute are (for whatever reason) blocked (both from the i and my workstation).

I've tried using wget in qshell (and qp2term), but I get a connection refused error.

Using wget I am able to retrieve the default index page from an IIS instance I'm running on my workstation (which is in the same physical network as the i).

Any ideas?

Thanks!

david